/* roulang page: index */
:root{
  --brand:#1F4B45;
  --brand-strong:#14332F;
  --brand-soft:#E4EEEA;
  --accent:#D9663A;
  --accent-strong:#C4582F;
  --accent-soft:#FBEAE2;
  --ink:#16211F;
  --ink-2:#4E5D59;
  --ink-3:#8A9894;
  --bg:#F7F4EE;
  --surface:#FFFFFF;
  --line:#E6E1D6;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-1:0 1px 2px rgba(22,33,31,.05),0 2px 8px rgba(22,33,31,.05);
  --shadow-2:0 6px 20px rgba(22,33,31,.09);
  --shadow-3:0 1px 0 var(--line),0 8px 24px rgba(22,33,31,.06);
  --container:1180px;
  --sec:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",Inter,system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;object-fit:cover;border-radius:var(--radius-img);box-shadow:inset 0 0 0 1px rgba(22,33,31,.06)}
a{color:var(--brand);text-decoration:none;transition:color .2s ease-out,text-decoration-color .2s ease-out}
a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
button,input{font:inherit}
button{cursor:pointer}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;color:var(--ink)}
h1{font-size:40px;line-height:1.32}
h2{font-size:28px;line-height:1.38}
h3{font-size:21px;line-height:1.5;font-weight:600}
p{margin:0 0 1.1em}
ul,ol{margin:0 0 1.1em;padding-left:1.15em}
li{margin-bottom:.5em}
:focus-visible{outline:3px solid rgba(31,75,69,.35);outline-offset:2px;border-radius:6px}
.container{max-width:var(--container);margin:0 auto;padding:0 32px}
.section{padding:var(--sec) 0}
.section-head{max-width:720px;margin-bottom:40px}
.section-head h2{margin-bottom:14px;position:relative;padding-left:16px}
.section-head h2::before{content:"";position:absolute;left:0;top:.35em;width:5px;height:1.05em;background:var(--brand);border-radius:3px}
.section-head p{color:var(--ink-2);margin:0}
.eyebrow{display:inline-block;font-size:13px;letter-spacing:.04em;color:var(--brand);background:var(--brand-soft);border-radius:999px;padding:5px 14px;margin-bottom:16px}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;border-radius:var(--radius-btn);font-size:15.5px;font-weight:600;border:1px solid transparent;transition:transform .2s ease-out,box-shadow .2s ease-out,background-color .2s ease-out,color .2s ease-out;white-space:nowrap}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-strong);color:#fff;text-decoration:none;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1)}
.btn-ghost{background:var(--surface);color:var(--brand);border-color:var(--brand)}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand);text-decoration:none}
.btn-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-light:hover{background:rgba(255,255,255,.14);color:#fff;text-decoration:none}
.btn-sm{height:40px;padding:0 16px;font-size:14.5px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}
.link-more{font-size:14.5px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px}
.link-more:hover{text-decoration:underline;text-underline-offset:3px;color:var(--accent)}

/* 徽章 */
.badge{display:inline-flex;align-items:center;height:25px;padding:0 12px;border-radius:999px;font-size:12px;font-weight:600;background:var(--brand-soft);color:var(--brand);line-height:1}
.badge-warm{background:var(--accent-soft);color:var(--accent-strong)}
.badge:hover{text-decoration:none;color:var(--brand-strong)}

/* 导航 */
.site-header{position:sticky;top:0;z-index:60;background:rgba(247,244,238,.9);border-bottom:1px solid var(--line);transition:box-shadow .24s ease-out,background-color .24s ease-out}
@supports (backdrop-filter:blur(8px)){.site-header{backdrop-filter:blur(8px)}}
.site-header.is-stuck{box-shadow:var(--shadow-3)}
.nav-inner{display:flex;align-items:center;gap:26px;height:68px}
.site-header.is-stuck .nav-inner{height:58px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo:hover{text-decoration:none}
.logo-mark{width:32px;height:32px;flex-shrink:0;color:var(--brand)}
.logo-text{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:-.01em}
.logo-text .logo-sub{font-weight:500;color:var(--ink-2)}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:6px}
.nav-link{font-size:15px;font-weight:500;color:var(--ink-2);padding:8px 14px;border-radius:8px;position:relative;transition:background-color .2s ease-out,color .2s ease-out}
.nav-link:hover{background:var(--brand-soft);color:var(--ink);text-decoration:none}
.nav-link.is-active{color:var(--ink)}
.nav-link.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--accent)}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-search{display:flex;align-items:center;gap:8px;width:260px;height:40px;padding:0 10px 0 12px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-btn);transition:border-color .2s ease-out,box-shadow .2s ease-out}
.nav-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,75,69,.14)}
.nav-search svg{width:16px;height:16px;color:var(--ink-3);flex-shrink:0}
.nav-search input{flex:1;min-width:0;border:0;outline:none;background:transparent;font-size:14px;color:var(--ink)}
.nav-search input::placeholder{color:var(--ink-3)}
.nav-search kbd{font-size:11px;color:var(--ink-3);background:var(--bg);border:1px solid var(--line);border-radius:6px;padding:1px 5px;line-height:1.5}
.nav-quick{font-size:14.5px;font-weight:500;color:var(--ink-2)}
.nav-burger{display:none;width:40px;height:40px;border:1px solid var(--line);background:var(--surface);border-radius:10px;flex-direction:column;justify-content:center;align-items:center;gap:4px}
.nav-burger span{display:block;width:17px;height:2px;background:var(--ink);border-radius:2px}

/* 抽屉 */
.drawer-mask{position:fixed;inset:0;background:rgba(22,33,31,.42);opacity:0;visibility:hidden;transition:opacity .24s ease-out,visibility .24s ease-out;z-index:70}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;bottom:0;width:min(340px,88vw);background:var(--surface);border-top-left-radius:18px;border-bottom-left-radius:18px;box-shadow:var(--shadow-2);transform:translateX(102%);transition:transform .24s ease-out;z-index:80;display:flex;flex-direction:column;padding:20px 20px 24px;overflow-y:auto}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--line);background:var(--surface);font-size:20px;line-height:1;color:var(--ink-2)}
.drawer-nav{display:flex;flex-direction:column;margin:14px 0 20px}
.drawer-nav a{height:52px;display:flex;align-items:center;font-size:15.5px;color:var(--ink-2);border-bottom:1px solid var(--line)}
.drawer-nav a:hover{color:var(--brand);text-decoration:none}
.drawer-nav a.is-active{color:var(--brand);font-weight:600}

/* Hero */
.hero{padding:72px 0 68px;border-bottom:1px solid var(--line)}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:52px;align-items:center}
.hero h1{margin-bottom:18px;max-width:16em}
.hero-sub{font-size:18px;line-height:1.8;color:var(--ink-2);max-width:34em;margin-bottom:28px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.hero-feats{display:flex;flex-wrap:wrap;gap:0;list-style:none;padding:0;margin:0;font-size:14px;color:var(--ink-2)}
.hero-feats li{margin:0;padding:0 16px;position:relative}
.hero-feats li:first-child{padding-left:0}
.hero-feats li+li::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:1px;height:14px;background:var(--line)}
.hero-visual{position:relative}
.hero-visual img{width:100%;aspect-ratio:4/3;border:1px solid var(--line);border-radius:var(--radius-img)}
.hero-chip{position:absolute;left:16px;bottom:16px;background:var(--brand-soft);color:var(--brand);font-size:12.5px;font-weight:600;padding:7px 14px;border-radius:999px}
.hero-note{margin:10px 0 0;font-size:13px;color:var(--ink-3)}

/* 主张区 非对称 */
.grid-12{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);padding:26px;transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;position:relative;overflow:hidden}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(31,75,69,.22)}
.card h3{margin:14px 0 10px}
.card p{color:var(--ink-2);font-size:15.5px;margin-bottom:0}
.card-lead{grid-column:span 6;display:grid;grid-template-columns:1.15fr .85fr;gap:22px;align-items:center;padding:28px}
.card-lead img{aspect-ratio:4/3;width:100%}
.card-mini{grid-column:span 3}

/* 故事区 */
.story-row{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;padding:44px 0;border-top:1px solid var(--line)}
.story-row:last-child{border-bottom:1px solid var(--line)}
.story-row img{aspect-ratio:16/10;width:100%}
.story-row.reverse .story-media{order:2}
.story-row.reverse .story-copy{order:1}
.story-copy h2{margin-bottom:16px}
.story-copy p{color:var(--ink-2);font-size:16px}
.story-tags{list-style:none;padding:0;display:flex;flex-wrap:wrap;gap:10px;margin:18px 0 0}

/* 精选卡 */
.pick-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.pick{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);overflow:hidden;display:flex;flex-direction:column;transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out}
.pick:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(31,75,69,.22)}
.pick img{width:100%;aspect-ratio:16/9;border-radius:0;box-shadow:none}
.pick-body{padding:22px;display:flex;flex-direction:column;flex:1}
.pick-body h3{margin:12px 0 10px;font-size:19px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pick-body p{color:var(--ink-2);font-size:15px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:16px}
.pick-meta{margin-top:auto;font-size:13px;color:var(--ink-3);display:flex;align-items:center;gap:10px}
.pick-a{grid-column:span 7}
.pick-b{grid-column:span 5}
.pick-c{grid-column:span 5}
.pick-d{grid-column:span 7}

/* 最新信息 CMS */
.post-list{border-top:1px solid var(--line)}
.post-item{display:block;padding:22px 16px;border-bottom:1px solid var(--line);transition:background-color .2s ease-out,transform .2s ease-out}
.post-item:hover{background:rgba(228,238,234,.55);transform:translateX(2px)}
.post-item:hover .post-title a{color:var(--brand-strong)}
.post-meta{display:flex;align-items:center;gap:12px;margin-bottom:8px;font-size:13px;color:var(--ink-3)}
.post-title{font-size:19px;margin-bottom:8px}
.post-title a{color:var(--ink)}
.post-title a:hover{text-decoration:none;color:var(--accent)}
.post-sum{color:var(--ink-2);font-size:15px;margin:0 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-link{font-size:14px;font-weight:600;color:var(--brand)}
.empty-state{border:1px dashed var(--line);border-radius:var(--radius-card);padding:46px 24px;text-align:center;background:var(--surface)}
.empty-state svg{width:34px;height:34px;color:var(--ink-3);margin:0 auto 12px}
.empty-state p{color:var(--ink-3);font-size:14px;margin:0 0 16px}

/* 信任背书 */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stat{padding:34px 24px;border-left:1px solid var(--line);text-align:left}
.stat:first-child{border-left:0}
.stat b{display:block;font-size:44px;line-height:1.1;font-weight:700;color:var(--brand);font-family:Inter,system-ui,sans-serif}
.stat span{display:block;font-size:13px;color:var(--ink-3);margin-top:8px}
.logo-wall{display:grid;grid-template-columns:repeat(6,1fr);gap:14px;margin-top:34px}
.logo-cell{height:48px;border:1px solid var(--line);border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:13px;color:var(--ink-3);background:var(--surface);transition:color .2s ease-out,border-color .2s ease-out}
.logo-cell:hover{color:var(--ink-2);border-color:rgba(31,75,69,.2)}

/* FAQ */
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:56px;padding:14px 4px;font-size:17px;font-weight:600;color:var(--ink);transition:color .2s ease-out}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{color:var(--brand)}
.faq summary .ico{flex-shrink:0;width:22px;height:22px;border-radius:50%;border:1px solid var(--line);position:relative;transition:transform .2s ease-out,border-color .2s ease-out}
.faq summary .ico::before,.faq summary .ico::after{content:"";position:absolute;background:var(--brand);border-radius:2px;left:50%;top:50%}
.faq summary .ico::before{width:10px;height:1.6px;transform:translate(-50%,-50%)}
.faq summary .ico::after{width:1.6px;height:10px;transform:translate(-50%,-50%)}
.faq details[open] summary .ico::after{opacity:0}
.faq details[open] summary{color:var(--brand)}
.faq .faq-body{padding:0 4px 22px;color:var(--ink-2);font-size:15px;line-height:1.85;max-width:60em}

/* CTA */
.cta-band{background:var(--brand-strong);color:#fff;padding:64px 0}
.cta-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center}
.cta-band h2{color:#fff;margin-bottom:12px}
.cta-band p{color:rgba(255,255,255,.78);margin:0;font-size:15.5px}
.cta-form{display:flex;gap:12px}
.cta-form input{flex:1;height:46px;border-radius:var(--radius-btn);border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.08);color:#fff;padding:0 14px;outline:none;font-size:15px}
.cta-form input::placeholder{color:rgba(255,255,255,.6)}
.cta-form input:focus{border-color:#fff;box-shadow:0 0 0 3px rgba(255,255,255,.16)}
.cta-note{font-size:12px;color:rgba(255,255,255,.6);margin-top:12px}

/* 页脚 */
.site-footer{background:var(--bg);border-top:1px solid var(--line);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.footer-brand p{color:var(--ink-2);font-size:14.5px;margin:16px 0 0;max-width:26em}
.footer-col h4{font-size:14px;color:var(--ink);margin-bottom:16px;font-weight:600}
.footer-col ul{list-style:none;padding:0;margin:0}
.footer-col li{margin:0 0 10px}
.footer-col a{font-size:14px;color:var(--ink-2)}
.footer-col a:hover{color:var(--ink);text-decoration:underline;text-underline-offset:3px}
.footer-bottom{margin-top:52px;border-top:1px solid var(--line);padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:12.5px;color:var(--ink-3)}

/* 响应式 */
@media (max-width:1120px){
  .nav-search{width:200px}
  .nav-quick{display:none}
  h1{font-size:34px}
}
@media (max-width:1024px){
  :root{--sec:72px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-visual{order:2}
  .card-lead{grid-column:span 12;grid-template-columns:1fr 1fr}
  .card-mini{grid-column:span 6}
  .pick-a,.pick-b,.pick-c,.pick-d{grid-column:span 6}
  .stats{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(3){border-left:0}
  .stat{border-top:0}
  .logo-wall{grid-template-columns:repeat(3,1fr)}
  .cta-grid{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  .nav-links,.nav-search{display:none}
  .nav-burger{display:flex}
  .container{padding:0 24px}
  .story-row{grid-template-columns:1fr;gap:24px;padding:36px 0}
  .story-row.reverse .story-media,.story-row.reverse .story-copy{order:initial}
}
@media (max-width:768px){
  :root{--sec:56px}
  body{font-size:16px;line-height:1.9}
  .container{padding:0 18px}
  h1{font-size:29px}
  h2{font-size:23px}
  .hero{padding:48px 0 44px}
  .hero-sub{font-size:16.5px}
  .hero-cta .btn{width:100%}
  .hero-feats li{padding:0 12px}
  .card-lead{grid-template-columns:1fr;padding:20px}
  .card-lead img{aspect-ratio:16/9}
  .card-mini{grid-column:span 12}
  .pick-a,.pick-b,.pick-c,.pick-d{grid-column:span 12}
  .card,.pick-body{padding:18px}
  .stat b{font-size:36px}
  .logo-wall{grid-template-columns:repeat(2,1fr)}
  .cta-form{flex-direction:column}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .nav-actions .btn-sm{display:none}
}
@media (max-width:520px){
  .stats{grid-template-columns:1fr}
  .stat{border-left:0;padding:22px 0}
  .hero-feats{flex-direction:column;gap:8px}
  .hero-feats li{padding:0}
  .hero-feats li+li::before{display:none}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: article */
:root{
  --brand:#1F4B45;
  --brand-strong:#14332F;
  --brand-soft:#E4EEEA;
  --accent:#D9663A;
  --accent-soft:#FBEAE2;
  --ink:#16211F;
  --ink-2:#4E5D59;
  --ink-3:#8A9894;
  --bg:#F7F4EE;
  --surface:#FFFFFF;
  --line:#E6E1D6;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-1:0 1px 2px rgba(22,33,31,.05),0 2px 8px rgba(22,33,31,.05);
  --shadow-2:0 6px 20px rgba(22,33,31,.09);
  --shadow-3:0 1px 0 var(--line),0 8px 24px rgba(22,33,31,.06);
  --gap-block:96px;
  --container:1180px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",Inter,system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-img);object-fit:cover}
a{color:var(--brand);text-decoration:none;transition:color .2s ease-out}
a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
button,input{font:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:3px solid rgba(31,75,69,.22);outline-offset:2px;border-radius:8px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700}
p{margin:0}

/* ============ NAV ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,244,238,.9);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease-out,padding .2s ease-out;
}
.site-header.is-scrolled{box-shadow:var(--shadow-3);background:rgba(247,244,238,.96)}
@supports (backdrop-filter:blur(8px)){
  .site-header{backdrop-filter:blur(8px)}
}
.nav-inner{display:flex;align-items:center;gap:20px;height:68px;transition:height .2s ease-out}
.site-header.is-scrolled .nav-inner{height:58px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--brand);flex:0 0 auto}
.logo:hover{text-decoration:none;color:var(--brand)}
.logo-mark{width:30px;height:30px;color:var(--brand);flex:0 0 auto}
.logo-text{font-size:18px;font-weight:700;letter-spacing:-.01em;color:var(--ink);white-space:nowrap}
.logo-sub{color:var(--ink-2);font-weight:600}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--ink-2);
  padding:8px 14px;border-radius:8px;transition:background .2s ease-out,color .2s ease-out;
}
.nav-link:hover{background:var(--brand-soft);color:var(--ink);text-decoration:none}
.nav-link.is-active{color:var(--ink);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;background:var(--accent);border-radius:2px;
}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-search{
  display:flex;align-items:center;gap:8px;width:260px;height:40px;padding:0 10px 0 12px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-btn);
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.nav-search svg{width:16px;height:16px;color:var(--ink-3);flex:0 0 auto}
.nav-search input{
  flex:1;min-width:0;border:0;background:transparent;font-size:14px;color:var(--ink);outline:none;
}
.nav-search input::placeholder{color:var(--ink-3)}
.nav-search kbd{
  font-size:11px;color:var(--ink-3);background:var(--bg);border:1px solid var(--line);
  border-radius:6px;padding:1px 6px;font-family:inherit;
}
.nav-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,75,69,.14)}
.nav-quick{font-size:14px;color:var(--ink-2);white-space:nowrap}
.nav-quick:hover{color:var(--brand)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:background .2s ease-out,color .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:var(--shadow-1)}
.btn-primary:hover{background:#c9562c;color:#fff;text-decoration:none;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:var(--surface);color:var(--brand);border:1px solid var(--brand)}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand);text-decoration:none}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.nav-burger{
  display:none;width:40px;height:40px;border-radius:10px;
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-burger span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease-out,opacity .2s ease-out}
.nav-burger.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-burger.is-open span:nth-child(2){opacity:0}
.nav-burger.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ============ ARTICLE HEAD ============ */
.article-head{padding:44px 0 32px;border-bottom:1px solid var(--line)}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:18px}
.breadcrumb a{color:var(--ink-3)}
.breadcrumb a:hover{color:var(--brand);text-decoration:none}
.breadcrumb .sep{color:var(--line)}
.breadcrumb .current{color:var(--ink-2)}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:600;background:var(--brand-soft);color:var(--brand);
}
.badge-accent{background:var(--accent-soft);color:#A8431F}
.article-title{
  font-size:38px;line-height:1.34;letter-spacing:-.01em;max-width:900px;margin:14px 0 0;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:20px;font-size:13px;color:var(--ink-3)}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:var(--line);display:inline-block}
.meta-row .badge{height:24px}

/* ============ LAYOUT ============ */
.article-wrap{padding:56px 0 var(--gap-block)}
.article-layout{
  display:grid;grid-template-columns:minmax(0,760px) 300px;
  gap:48px;justify-content:center;align-items:start;
}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px;box-shadow:var(--shadow-1);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(31,75,69,.22)}

/* ============ ARTICLE BODY ============ */
.article-body{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:40px 44px;box-shadow:var(--shadow-1);
  font-size:17px;line-height:1.95;color:var(--ink);
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.1em;color:var(--ink)}
.article-body h2{
  position:relative;margin:2.2em 0 .7em;padding-left:16px;
  font-size:27px;line-height:1.38;letter-spacing:-.01em;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.28em;width:4px;height:1.05em;
  background:var(--accent);border-radius:2px;
}
.article-body h3{margin:1.8em 0 .6em;font-size:21px;line-height:1.5;font-weight:600}
.article-body h4{margin:1.5em 0 .5em;font-size:17px;font-weight:600;color:var(--ink-2)}
.article-body ul,.article-body ol{margin:0 0 1.1em;padding-left:1.35em}
.article-body li{margin-bottom:.5em;line-height:1.9}
.article-body ul li::marker{color:var(--brand)}
.article-body ol li::marker{color:var(--brand);font-weight:600}
.article-body blockquote{
  margin:1.4em 0;padding:16px 20px;background:var(--brand-soft);
  border-left:3px solid var(--brand);border-radius:10px;color:var(--ink-2);font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{width:100%;margin:1.4em 0;border-radius:var(--radius-img);border:1px solid rgba(22,33,31,.06)}
.article-body figure{margin:1.6em 0}
.article-body figcaption{text-align:center;font-size:13px;color:var(--ink-3);margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:12px 14px;text-align:left;line-height:1.7}
.article-body th{background:var(--brand-soft);font-weight:600;color:var(--brand)}
.article-body code{
  background:var(--bg);border:1px solid var(--line);border-radius:6px;padding:2px 6px;
  font-family:"SFMono-Regular",Menlo,Consolas,monospace;font-size:14px;color:var(--brand-strong);
}
.article-body pre{
  background:var(--bg);border:1px solid var(--line);border-radius:10px;
  padding:18px;overflow-x:auto;margin:1.4em 0;
}
.article-body pre code{background:none;border:0;padding:0}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(31,75,69,.3)}
.article-body a:hover{color:var(--accent);border-bottom-color:var(--accent);text-decoration:none}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.2em 0}

/* ============ EMPTY STATE ============ */
.empty-state{
  background:var(--surface);border:1px dashed var(--line);border-radius:var(--radius-card);
  padding:56px 28px;text-align:center;box-shadow:var(--shadow-1);
}
.empty-state .empty-icon{
  width:56px;height:56px;margin:0 auto 16px;border-radius:16px;background:var(--accent-soft);
  display:flex;align-items:center;justify-content:center;color:var(--accent);
}
.empty-state h2{font-size:22px;margin-bottom:10px}
.empty-state p{font-size:14px;color:var(--ink-3);margin-bottom:22px}

/* ============ TAG + READ NEXT ============ */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--bg);border:1px solid var(--line);font-size:12px;color:var(--ink-2);
}
.tag:hover{border-color:rgba(31,75,69,.22);color:var(--brand)}
.read-next{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:32px}
.read-next-card{
  display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px 22px;box-shadow:var(--shadow-1);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.read-next-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(31,75,69,.22);text-decoration:none}
.read-next-card span{font-size:12px;color:var(--ink-3)}
.read-next-card strong{display:block;margin-top:8px;font-size:16px;font-weight:600;color:var(--ink);line-height:1.6}
.read-next-card:hover strong{color:var(--brand)}
.back-link{display:inline-flex;align-items:center;gap:8px;margin-top:36px;font-size:15px;font-weight:600;color:var(--brand)}
.back-link:hover{color:var(--accent);text-decoration:none}

/* ============ SIDEBAR ============ */
.sidebar{display:flex;flex-direction:column;gap:24px;position:sticky;top:96px}
.sidebar h3{font-size:17px;font-weight:600;margin-bottom:14px}
.side-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}
.side-list li a{
  display:block;padding:10px 12px;border-radius:8px;font-size:14px;color:var(--ink-2);
  border-left:2px solid transparent;transition:background .2s ease-out,color .2s ease-out,border-color .2s ease-out;
}
.side-list li a:hover{background:var(--brand-soft);color:var(--ink);text-decoration:none;border-left-color:var(--accent)}
.side-thumb{width:100%;height:132px;margin-bottom:14px}
.side-card p{font-size:14px;color:var(--ink-2);line-height:1.8;margin-bottom:14px}
.subscribe-form{display:flex;flex-direction:column;gap:12px}
.field{
  width:100%;height:44px;padding:0 14px;border:1px solid var(--line);border-radius:var(--radius-btn);
  background:var(--surface);font-size:14px;color:var(--ink);outline:none;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.field::placeholder{color:var(--ink-3)}
.field:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,75,69,.14)}
.form-note{font-size:12px;color:var(--ink-3);line-height:1.7;margin-top:2px}

/* ============ SECTION BLOCKS ============ */
.section{padding:var(--gap-block) 0}
.section-head{max-width:640px;margin-bottom:36px}
.section-head .eyebrow{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);font-size:12px;font-weight:600;margin-bottom:14px;
}
.section-head h2{font-size:28px;line-height:1.42;position:relative;padding-left:16px}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.3em;width:4px;height:1em;background:var(--accent);border-radius:2px;
}
.section-head p{margin-top:12px;font-size:15px;color:var(--ink-2)}

.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.related-card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.related-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(31,75,69,.22);text-decoration:none}
.related-card img{width:100%;height:168px;border-radius:0}
.related-card .rc-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px}
.related-card .rc-title{font-size:17px;font-weight:600;line-height:1.6;color:var(--ink)}
.related-card p{font-size:14px;color:var(--ink-2);line-height:1.8}
.related-card .rc-meta{font-size:13px;color:var(--ink-3)}

/* ============ CTA ============ */
.cta-band{background:var(--brand-strong);color:#fff;padding:72px 0}
.cta-inner{display:grid;grid-template-columns:1.15fr 1fr;gap:40px;align-items:center}
.cta-band h2{color:#fff;font-size:28px;line-height:1.42}
.cta-band p{color:rgba(255,255,255,.78);margin-top:12px;font-size:15px;max-width:520px}
.cta-form{display:flex;gap:12px}
.cta-form .field{height:44px;background:rgba(255,255,255,.96);border:1px solid transparent}
.cta-form .field:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(217,102,58,.28)}
.cta-note{font-size:12px;color:rgba(255,255,255,.6);margin-top:12px}

/* ============ FAQ ============ */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 0;cursor:pointer;list-style:none;
  font-size:17px;font-weight:600;color:var(--ink);line-height:1.7;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";font-size:20px;font-weight:500;color:var(--brand);flex:0 0 auto;
  transition:transform .2s ease-out;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item p{padding:0 0 20px;font-size:15px;color:var(--ink-2);line-height:1.85;max-width:820px}

/* ============ FOOTER ============ */
.site-footer{background:var(--surface);border-top:1px solid var(--line);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.footer-brand p{margin-top:16px;font-size:14px;color:var(--ink-2);line-height:1.85;max-width:320px}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:16px;color:var(--ink)}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.footer-col li a{font-size:14px;color:var(--ink-2)}
.footer-col li a:hover{color:var(--ink);text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  border-top:1px solid var(--line);padding:20px 0;font-size:13px;color:var(--ink-3);
}

/* ============ RESPONSIVE ============ */
@media (max-width:1279px){
  .nav-search{width:210px}
}
@media (max-width:1080px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:36px}
  .sidebar{position:static}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:1023px){
  :root{--gap-block:72px}
  .nav-search{display:none}
  .nav-quick{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-inner{grid-template-columns:1fr;gap:28px}
  .article-title{font-size:32px}
  .article-body{padding:32px 28px}
}
@media (max-width:900px){
  .nav-burger{display:flex}
  .nav-links{
    position:fixed;top:0;right:0;bottom:0;width:min(88vw,340px);
    background:var(--surface);border-left:1px solid var(--line);
    flex-direction:column;align-items:stretch;gap:0;margin:0;
    padding:88px 20px 28px;overflow-y:auto;z-index:90;
    box-shadow:var(--shadow-2);transform:translateX(102%);
    transition:transform .22s ease-out;
  }
  .nav-links.is-open{transform:translateX(0)}
  .nav-link{padding:15px 4px;border-bottom:1px solid var(--line);border-radius:0;font-size:16px}
  .nav-link:hover{background:transparent}
  .nav-link.is-active::after{left:4px;right:auto;width:26px;bottom:-1px}
  .nav-actions .btn-sm{height:38px;padding:0 14px;font-size:13px}
}
@media (max-width:767px){
  :root{--gap-block:56px}
  .container{padding:0 18px}
  .article-head{padding:28px 0 24px}
  .article-title{font-size:28px;line-height:1.36}
  .article-body{font-size:16px;line-height:1.9;padding:24px 20px;border-radius:var(--radius-card)}
  .article-body h2{font-size:23px}
  .article-body h3{font-size:19px}
  .read-next{grid-template-columns:1fr}
  .related-grid{grid-template-columns:1fr}
  .cta-form{flex-direction:column}
  .cta-form .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .badge,.tag{font-size:12px}
  .btn{min-height:44px}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.001ms !important;animation-duration:.001ms !important}
}

/* roulang page: category1 */
:root{
  --brand:#1F4B45;
  --brand-strong:#14332F;
  --brand-soft:#E4EEEA;
  --accent:#D9663A;
  --accent-soft:#FBEAE2;
  --ink:#16211F;
  --ink-2:#4E5D59;
  --ink-3:#8A9894;
  --bg:#F7F4EE;
  --surface:#FFFFFF;
  --line:#E6E1D6;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-1:0 1px 2px rgba(22,33,31,.05),0 2px 8px rgba(22,33,31,.05);
  --shadow-2:0 6px 20px rgba(22,33,31,.09);
  --shadow-3:0 1px 0 var(--line),0 8px 24px rgba(22,33,31,.06);
  --container:1180px;
  --gap:24px;
  --sec:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16.5px;
  line-height:1.9;
  color:var(--ink);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand);text-decoration:none;transition:color .2s ease-out,background-color .2s ease-out,border-color .2s ease-out}
a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
button,input{font:inherit;color:inherit}
button{cursor:pointer}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.01em}
h1{font-size:38px;font-weight:700;line-height:1.32}
h2{font-size:28px;font-weight:700;line-height:1.38}
h3{font-size:20px;font-weight:600;line-height:1.5}
h4{font-size:16px;font-weight:600;line-height:1.5}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0 0 1.1em;padding-left:1.25em}
li{margin-bottom:.45em;line-height:1.9}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(31,75,69,.2);border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.section{padding:var(--sec) 0}
.section--tight{padding:64px 0}
.section--soft{background:var(--brand-soft)}
.section--paper{background:var(--bg)}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.badge--accent{background:var(--accent-soft);color:#B4491F}
.eyebrow{
  display:inline-block;margin-bottom:14px;
  font-size:12px;font-weight:600;color:var(--brand);
  letter-spacing:.16em;text-transform:uppercase;
}
.section-head{max-width:720px;margin-bottom:40px}
.section-head h2{position:relative;padding-left:16px}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:4px;
  border-radius:2px;background:var(--brand);
}
.section-head p{margin-top:14px;color:var(--ink-2);font-size:16px}
.text-link{font-weight:600;font-size:15px;color:var(--brand);white-space:nowrap}
.text-link::after{content:" →";transition:transform .2s ease-out;display:inline-block}
.text-link:hover::after{transform:translateX(3px)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background-color .2s ease-out,color .2s ease-out,border-color .2s ease-out;
  white-space:nowrap;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:var(--shadow-1)}
.btn-primary:hover{background:#C95A31;color:#fff;text-decoration:none;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1)}
.btn-ghost{background:var(--surface);color:var(--brand);border-color:var(--brand)}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand);text-decoration:none;transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,244,238,.86);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease-out,background-color .22s ease-out;
}
@supports (backdrop-filter:blur(8px)){
  .site-header{backdrop-filter:blur(8px)}
}
.site-header.is-scrolled{box-shadow:var(--shadow-3)}
.nav-inner{display:flex;align-items:center;gap:24px;height:68px;transition:height .2s ease-out}
.site-header.is-scrolled .nav-inner{height:58px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--brand);flex-shrink:0}
.logo:hover{color:var(--brand);text-decoration:none}
.logo-mark{width:30px;height:30px;flex:none;stroke:var(--brand)}
.logo-text{font-size:18px;font-weight:700;letter-spacing:-.01em;color:var(--ink)}
.logo-sub{color:var(--ink-3);font-weight:600;font-size:14px;margin:0 1px}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:12px}
.nav-link{
  position:relative;padding:8px 14px;border-radius:8px;
  font-size:15px;font-weight:500;color:var(--ink-2);
  transition:background-color .2s ease-out,color .2s ease-out;
}
.nav-link:hover{background:var(--brand-soft);color:var(--ink);text-decoration:none}
.nav-link.is-active{color:var(--ink)}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  border-radius:2px;background:var(--accent);
}
.nav-actions{display:flex;align-items:center;gap:14px;margin-left:auto}
.nav-search{
  display:flex;align-items:center;gap:8px;
  width:260px;height:40px;padding:0 12px;
  background:var(--surface);border:1px solid var(--line);border-radius:10px;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.nav-search svg{width:16px;height:16px;flex:none;color:var(--ink-3);stroke:currentColor}
.nav-search input{
  flex:1;min-width:0;border:0;background:transparent;outline:none;
  font-size:14px;color:var(--ink);
}
.nav-search input::placeholder{color:var(--ink-3)}
.nav-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,75,69,.14)}
.nav-search kbd{
  flex:none;padding:1px 6px;border-radius:6px;background:var(--bg);
  border:1px solid var(--line);font-size:11px;color:var(--ink-3);font-family:inherit;
}
.nav-quick{font-size:14px;font-weight:500;color:var(--ink-2)}
.nav-quick:hover{color:var(--ink)}
.nav-burger{
  display:none;width:40px;height:40px;padding:0;border:1px solid var(--line);
  border-radius:10px;background:var(--surface);
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink)}
.nav-burger:hover{border-color:var(--brand)}
.drawer-mask{
  position:fixed;inset:0;background:rgba(22,33,31,.34);z-index:70;
  opacity:0;pointer-events:none;transition:opacity .22s ease-out;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.nav-drawer{
  position:fixed;top:0;right:0;z-index:80;width:min(340px,86vw);height:100%;
  background:var(--surface);border-top-left-radius:18px;border-bottom-left-radius:18px;
  padding:22px;transform:translateX(102%);
  transition:transform .24s ease-out;overflow-y:auto;
  box-shadow:var(--shadow-2);
}
.nav-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{
  width:36px;height:36px;border:1px solid var(--line);border-radius:10px;
  background:var(--surface);font-size:18px;line-height:1;color:var(--ink-2);
}
.drawer-close:hover{border-color:var(--brand);color:var(--ink)}
.nav-search--drawer{width:100%;margin-bottom:16px}
.drawer-links{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.drawer-links a{
  display:flex;align-items:center;height:52px;
  border-bottom:1px solid var(--line);
  font-size:15px;font-weight:500;color:var(--ink-2);
}
.drawer-links a:hover{background:var(--brand-soft);color:var(--ink);text-decoration:none;padding-left:8px}
.drawer-links a.is-active{color:var(--ink);font-weight:600}
.drawer-cta{margin-top:22px}

/* ---------- 页头 ---------- */
.pagehead{padding:64px 0 56px;background:var(--surface);border-bottom:1px solid var(--line)}
.pagehead-inner{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:center}
.pagehead-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--radius-img);
  border:1px solid rgba(22,33,31,.06);
  box-shadow:var(--shadow-1);
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:16px}
.breadcrumb a{color:var(--ink-2)}
.breadcrumb .sep{color:var(--ink-3)}
.pagehead-text h1{margin:14px 0 14px}
.pagehead-sub{color:var(--ink-2);font-size:17px;max-width:560px;margin-bottom:26px}
.pagehead-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 数据条 ---------- */
.metrics{background:var(--bg);border-bottom:1px solid var(--line)}
.metrics-inner{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;padding:34px 0}
.metric{display:flex;flex-direction:column;gap:4px;padding-left:18px;border-left:1px solid var(--line)}
.metric:first-child{border-left:0;padding-left:0}
.metric strong{font-size:30px;font-weight:700;color:var(--brand);line-height:1.2;letter-spacing:-.02em}
.metric span{font-size:13px;color:var(--ink-3)}

/* ---------- 图文交错 ---------- */
.split{display:grid;grid-template-columns:6fr 6fr;gap:56px;align-items:center}
.split--reverse .split-media{order:2}
.split-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--radius-img);border:1px solid rgba(22,33,31,.06);
  box-shadow:var(--shadow-1);
}
.split-body h2{margin-bottom:16px}
.split-body p{color:var(--ink-2)}
.check-list{list-style:none;padding:0;margin:22px 0 0}
.check-list li{position:relative;padding-left:26px;color:var(--ink-2)}
.check-list li::before{
  content:"";position:absolute;left:0;top:.68em;width:8px;height:8px;
  border-radius:2px;background:var(--brand);
}
.split-note{
  margin-top:24px;padding:16px 18px;border-radius:10px;
  background:var(--accent-soft);color:#8E3C1C;font-size:14px;line-height:1.8;
}

/* ---------- 条目列表 ---------- */
.entry-list{border-top:1px solid var(--line)}
.entry{
  display:grid;grid-template-columns:56px 1fr 140px;gap:24px;align-items:start;
  padding:26px 18px;border-bottom:1px solid var(--line);
  background:transparent;transition:background-color .2s ease-out,transform .2s ease-out;
}
.entry:hover{background:rgba(228,238,234,.55);transform:translateX(2px);border-radius:10px}
.entry-no{
  font-size:22px;font-weight:700;color:var(--brand);line-height:1.4;
  font-variant-numeric:tabular-nums;
}
.entry h3{margin-bottom:8px}
.entry p{color:var(--ink-2);font-size:15px;margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.entry-meta{display:flex;flex-direction:column;align-items:flex-end;gap:8px;font-size:13px;color:var(--ink-3);text-align:right}

/* ---------- 卡片网格 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-1);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
  display:flex;flex-direction:column;gap:12px;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(31,75,69,.22)}
.card h3{margin:0}
.card p{color:var(--ink-2);font-size:15px;margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-figure{margin:-24px -24px 0;border-radius:14px 14px 0 0;overflow:hidden}
.card-figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--ink-3)}

/* ---------- FAQ ---------- */
.faq{max-width:860px;margin:0 auto;border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 4px;cursor:pointer;list-style:none;
  font-size:17px;font-weight:600;color:var(--ink);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{color:var(--brand)}
.faq-icon{
  flex:none;width:22px;height:22px;position:relative;
  transition:transform .2s ease-out;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
}
.faq-icon::before{left:0;right:0;top:10px;height:2px}
.faq-icon::after{top:0;bottom:0;left:10px;width:2px;transition:opacity .2s ease-out}
.faq details[open] .faq-icon{transform:rotate(45deg)}
.faq details[open] .faq-icon::after{opacity:.25}
.faq-body{padding:0 4px 20px;color:var(--ink-2);font-size:15px;line-height:1.85;max-width:760px}

/* ---------- CTA 通栏 ---------- */
.cta-band{background:var(--brand-soft);padding:72px 0}
.cta-inner{display:grid;grid-template-columns:1fr auto;gap:40px;align-items:center}
.cta-inner h2{max-width:520px}
.cta-inner p{margin-top:12px;color:var(--ink-2);font-size:15px;max-width:460px}
.cta-form{display:flex;align-items:center;gap:12px}
.cta-form input{
  width:280px;height:44px;padding:0 14px;border:1px solid var(--line);
  border-radius:10px;background:var(--surface);outline:none;font-size:15px;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.cta-form input::placeholder{color:var(--ink-3)}
.cta-form input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,75,69,.14)}
.cta-form input.is-error{border-color:var(--accent)}
.cta-privacy{grid-column:1 / -1;font-size:12px;color:var(--ink-3);margin-top:-14px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-strong);color:rgba(255,255,255,.78);padding:64px 0 0}
.site-footer .logo-text{color:#fff}
.site-footer .logo-sub{color:rgba(255,255,255,.6)}
.site-footer .logo-mark{stroke:#fff}
.site-footer .logo:hover{text-decoration:none}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:320px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer-col ul{list-style:none;margin:0;padding:0}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.72)}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  padding:20px 0 26px;border-top:1px solid rgba(255,255,255,.14);
  font-size:12.5px;color:rgba(255,255,255,.58);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .nav-search{width:210px}
  .nav-links{margin-left:0}
}
@media (max-width:1023px){
  :root{--sec:72px}
  h1{font-size:32px}
  h2{font-size:25px}
  .nav-links{display:none}
  .nav-quick{display:none}
  .nav-burger{display:flex}
  .nav-search{width:min(260px,42vw)}
  .pagehead-inner{grid-template-columns:1fr;gap:32px}
  .pagehead-media{order:-1}
  .pagehead-media img{aspect-ratio:16/9}
  .split{grid-template-columns:1fr;gap:32px}
  .split--reverse .split-media{order:0}
  .entry{grid-template-columns:44px 1fr;padding:22px 12px}
  .entry-meta{grid-column:2;align-items:flex-start;text-align:left;flex-direction:row;gap:14px}
  .cta-inner{grid-template-columns:1fr;gap:24px}
  .cta-form input{width:100%}
}
@media (max-width:767px){
  :root{--sec:56px}
  body{font-size:16px;line-height:1.9}
  .container{padding:0 18px}
  h1{font-size:28px}
  h2{font-size:23px}
  h3{font-size:18px}
  .nav-inner{height:62px}
  .nav-search{display:none}
  .logo-text{font-size:16px}
  .pagehead{padding:36px 0 40px}
  .metrics-inner{grid-template-columns:repeat(2,1fr);gap:20px;padding:26px 0}
  .metric{border-left:0;padding-left:0}
  .card-grid{grid-template-columns:1fr}
  .card{padding:18px}
  .card-figure{margin:-18px -18px 0}
  .cta-form{flex-direction:column;align-items:stretch}
  .cta-form .btn{width:100%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer-brand{grid-column:1 / -1}
  .btn{min-height:44px}
  .pagehead-actions .btn{width:100%}
}
@media (max-width:519px){
  .metrics-inner{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr}
  .entry h3{font-size:17px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
:root{
  --brand:#1F4B45;
  --brand-strong:#14332F;
  --brand-soft:#E4EEEA;
  --accent:#D9663A;
  --accent-soft:#FBEAE2;
  --ink:#16211F;
  --ink-2:#4E5D59;
  --ink-3:#8A9894;
  --bg:#F7F4EE;
  --surface:#FFFFFF;
  --line:#E6E1D6;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --shadow-1:0 1px 2px rgba(22,33,31,.05),0 2px 8px rgba(22,33,31,.05);
  --shadow-2:0 6px 20px rgba(22,33,31,.09);
  --shadow-3:0 1px 0 var(--line),0 8px 24px rgba(22,33,31,.06);
  --wrap:1180px;
  --sec:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  font-size:16.5px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;}
a:hover{color:var(--accent);}
button{font-family:inherit;}
input{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);}
h2{font-size:28px;font-weight:700;line-height:1.38;}
h3{font-size:21px;font-weight:600;line-height:1.5;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;}
:focus-visible{outline:3px solid rgba(31,75,69,.22);outline-offset:2px;border-radius:4px;}
.container{
  width:100%;
  max-width:var(--wrap);
  margin:0 auto;
  padding:0 32px;
}
.section{padding:var(--sec) 0;}
.section-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:740px;margin-bottom:40px;}
.section-head p{color:var(--ink-2);font-size:16.5px;line-height:1.9;}
.eyebrow{
  display:inline-block;
  font-size:12px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--brand);
  background:var(--brand-soft);
  border-radius:999px;
  padding:5px 12px;
  margin-bottom:14px;
}
/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 20px;
  font-size:15px;
  font-weight:600;
  line-height:1;
  border:1px solid transparent;
  border-radius:var(--r-btn);
  cursor:pointer;
  text-decoration:none;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background-color .2s ease-out,border-color .2s ease-out,color .2s ease-out;
}
.btn-sm{height:40px;padding:0 16px;font-size:14px;}
.btn-primary{background:var(--accent);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:#C8592F;color:#fff;box-shadow:var(--shadow-2);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1);}
.btn-brand{background:var(--brand);color:#fff;box-shadow:var(--shadow-1);}
.btn-brand:hover{background:var(--brand-strong);color:#fff;box-shadow:var(--shadow-2);transform:translateY(-1px);}
.btn-ghost{background:#fff;border-color:var(--brand);color:var(--brand);}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand);}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;}
.text-link{
  display:inline-block;
  color:var(--brand);
  font-size:15px;
  font-weight:600;
  border-bottom:1px solid transparent;
  transition:color .2s ease-out,border-color .2s ease-out,transform .2s ease-out;
}
.text-link:hover{color:var(--accent);border-bottom-color:var(--accent);transform:translateY(-1px);}
/* 徽章与标签 */
.badge{
  display:inline-flex;
  align-items:center;
  height:25px;
  padding:0 12px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  background:var(--brand-soft);
  color:var(--brand);
}
.badge-accent{background:var(--accent-soft);color:#A8461F;}
.tag{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:999px;
  background:#fff;
  border:1px solid var(--line);
  font-size:13px;
  color:var(--ink-2);
}
/* 顶部导航 */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(247,244,238,.86);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease-out;
}
@supports (backdrop-filter:blur(8px)){
  .site-header{backdrop-filter:blur(8px);}
}
.site-header.is-scrolled{box-shadow:var(--shadow-3);}
.nav-inner{
  display:flex;
  align-items:center;
  gap:22px;
  height:68px;
  transition:height .22s ease-out;
}
.site-header.is-scrolled .nav-inner{height:58px;}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--brand);
  flex:0 0 auto;
}
.logo-mark{width:28px;height:28px;flex:0 0 auto;}
.logo-text{font-size:18px;font-weight:700;letter-spacing:-.01em;color:var(--ink);}
.logo-sub{color:var(--ink-2);font-weight:600;}
.nav-links{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:4px;
  flex:1 1 auto;
}
.nav-link{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--ink-2);
  padding:8px 14px;
  border-radius:8px;
  transition:background-color .2s ease-out,color .2s ease-out;
}
.nav-link:hover{background:var(--brand-soft);color:var(--ink);}
.nav-link.is-active{color:var(--ink);}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:1px;
  height:2px;border-radius:2px;
  background:var(--accent);
}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-search{
  display:flex;
  align-items:center;
  gap:8px;
  width:260px;
  height:40px;
  padding:0 10px 0 12px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:10px;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.nav-search svg{width:16px;height:16px;color:var(--ink-3);flex:0 0 auto;}
.nav-search input{
  flex:1 1 auto;
  min-width:0;
  border:0;
  outline:0;
  background:transparent;
  font-size:14px;
  color:var(--ink);
}
.nav-search input::placeholder{color:var(--ink-3);}
.nav-search kbd{
  font-family:inherit;
  font-size:11px;
  color:var(--ink-3);
  background:var(--bg);
  border:1px solid var(--line);
  border-radius:6px;
  padding:2px 5px;
}
.nav-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,75,69,.14);}
.nav-quick{
  font-size:14px;
  color:var(--ink-2);
  padding:6px 2px;
  border-bottom:1px solid transparent;
  transition:color .2s ease-out,border-color .2s ease-out;
}
.nav-quick:hover{color:var(--brand);border-bottom-color:var(--brand);}
.nav-burger{
  display:none;
  width:40px;height:40px;
  padding:9px 8px;
  border:1px solid var(--line);
  background:#fff;
  border-radius:10px;
  flex-direction:column;
  justify-content:space-between;
  cursor:pointer;
}
.nav-burger span{display:block;height:2px;background:var(--ink);border-radius:2px;}
.drawer-search{display:none;}
.drawer-cta{display:none;}
/* 页头 */
.page-head{
  background:var(--brand-soft);
  border-bottom:1px solid var(--line);
  padding:56px 0 52px;
}
.page-head-inner{
  display:grid;
  grid-template-columns:1.25fr 1fr;
  gap:48px;
  align-items:center;
}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--ink-3);
  margin-bottom:16px;
}
.breadcrumb a{color:var(--ink-3);}
.breadcrumb a:hover{color:var(--brand);}
.bc-current{color:var(--ink-2);}
.page-head h1{
  font-size:40px;
  font-weight:700;
  line-height:1.32;
  letter-spacing:-.01em;
  margin:14px 0 14px;
}
.page-head-sub{
  color:var(--ink-2);
  font-size:17px;
  line-height:1.9;
  max-width:34em;
  margin-bottom:20px;
}
.page-head-tags{display:flex;flex-wrap:wrap;gap:10px;}
.page-head-figure{margin:0;}
.page-head-figure img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:var(--r-img);
  border:1px solid rgba(22,33,31,.06);
  background:var(--brand-soft);
  box-shadow:var(--shadow-1);
}
/* 图文交错 */
.split{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:48px;
  align-items:center;
}
.split.is-reverse{grid-template-columns:5fr 7fr;}
.split.is-reverse .split-media{order:2;}
.split + .split{margin-top:72px;}
.split-media{margin:0;}
.split-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:var(--r-img);
  border:1px solid rgba(22,33,31,.06);
  background:var(--brand-soft);
}
.split-body h3{margin-bottom:14px;}
.split-body p{color:var(--ink-2);font-size:16.5px;line-height:1.9;}
.split-body .text-link{margin-top:8px;}
/* 阶段条 */
.stage-strip{
  list-style:none;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0 32px;
  border-top:1px solid var(--line);
}
.stage{
  position:relative;
  padding:30px 0 6px;
}
.stage::before{
  content:"";
  position:absolute;
  top:-5px;left:0;
  width:9px;height:9px;
  border-radius:50%;
  background:var(--accent);
}
.stage-index{
  display:block;
  font-size:13px;
  font-weight:700;
  letter-spacing:.06em;
  color:var(--accent);
  margin-bottom:10px;
}
.stage h3{font-size:18px;margin-bottom:8px;}
.stage p{color:var(--ink-2);font-size:15px;line-height:1.85;}
/* 条目列表 */
.entry-list{
  list-style:none;
  border-top:1px solid var(--line);
}
.entry{
  display:grid;
  grid-template-columns:64px 1fr auto;
  gap:24px;
  align-items:center;
  padding:26px 18px 26px 0;
  border-bottom:1px solid var(--line);
  transition:background-color .2s ease-out,transform .2s ease-out;
}
.entry:hover{background:rgba(31,75,69,.07);transform:translateX(2px);}
.entry-no{font-size:26px;font-weight:700;color:var(--brand);line-height:1;}
.entry h3{font-size:19px;margin-bottom:8px;}
.entry h3 a{color:var(--ink);}
.entry h3 a:hover{color:var(--brand);}
.entry p{color:var(--ink-2);font-size:15.5px;line-height:1.85;max-width:64ch;margin:0;}
.entry .text-link{white-space:nowrap;}
/* 横向滚动卡 */
.scroll-cards{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.s-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;
}
.s-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-2);
  border-color:rgba(31,75,69,.22);
}
.s-card-media img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  background:var(--brand-soft);
}
.s-card-body{padding:22px;}
.s-card-body h3{font-size:18px;margin:12px 0 8px;}
.s-card-body p{
  color:var(--ink-2);
  font-size:15px;
  line-height:1.8;
  margin-bottom:14px;
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
/* FAQ */
.faq{border-top:1px solid var(--line);margin-top:8px;}
.faq details{border-bottom:1px solid var(--line);}
.faq summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:56px;
  padding:16px 4px;
  font-size:17px;
  font-weight:600;
  color:var(--ink);
  transition:color .2s ease-out;
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary:hover{color:var(--brand);}
.faq .chev{width:18px;height:18px;color:var(--ink-3);flex:0 0 auto;transition:transform .2s ease-out;}
.faq details[open] .chev{transform:rotate(180deg);}
.faq .faq-body{
  padding:0 4px 22px;
  color:var(--ink-2);
  font-size:15px;
  line-height:1.85;
  max-width:72ch;
}
/* CTA 通栏 */
.cta-band{
  background:var(--brand-soft);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:64px 0;
}
.cta-inner{
  display:grid;
  grid-template-columns:1.1fr 1fr;
  gap:44px;
  align-items:center;
}
.cta-band h2{font-size:26px;margin-bottom:12px;}
.cta-copy p{color:var(--ink-2);font-size:16px;line-height:1.85;margin-bottom:20px;}
.cta-form{display:flex;gap:12px;}
.cta-form input{
  flex:1 1 auto;
  min-width:0;
  height:44px;
  padding:0 14px;
  border:1px solid var(--line);
  border-radius:10px;
  background:#fff;
  font-size:15px;
  color:var(--ink);
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.cta-form input::placeholder{color:var(--ink-3);}
.cta-form input:focus{outline:0;border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,75,69,.14);}
.cta-note{font-size:12px;color:var(--ink-3);margin-top:10px;}
/* 页脚 */
.site-footer{background:var(--brand-strong);color:#D8E3DF;margin-top:0;}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:40px;
  padding:64px 0 48px;
}
.site-footer .logo-text{color:#fff;}
.site-footer .logo-sub{color:#B9CCC7;}
.site-footer .logo{color:#E4EEEA;}
.footer-brand p{font-size:14px;line-height:1.85;color:#B9CCC7;margin-top:14px;max-width:34ch;}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-col ul{list-style:none;display:grid;gap:10px;}
.footer-col a{font-size:14px;color:#B9CCC7;}
.footer-col a:hover{color:#fff;text-decoration:underline;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding:20px 0;
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:space-between;
  font-size:12.5px;
  color:#9FB4AF;
}
@media (max-width:1024px){
  .container{padding:0 24px;}
  .page-head-inner{grid-template-columns:1fr;gap:32px;}
  .page-head h1{font-size:34px;}
  .split,.split.is-reverse{grid-template-columns:1fr;gap:28px;}
  .split.is-reverse .split-media{order:0;}
  .split + .split{margin-top:56px;}
  .stage-strip{grid-template-columns:repeat(2,1fr);gap:0 28px;}
  .entry{grid-template-columns:52px 1fr;gap:18px;padding-right:8px;}
  .entry .text-link{grid-column:2;justify-self:start;margin-top:10px;}
  .scroll-cards{grid-template-columns:repeat(2,1fr);}
  .cta-inner{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:56px 0 40px;}
}
@media (max-width:900px){
  .nav-burger{display:flex;}
  .nav-search,.nav-quick{display:none;}
  .nav-links{
    position:fixed;
    top:0;right:0;
    height:100vh;
    width:min(330px,88vw);
    background:#fff;
    flex-direction:column;
    align-items:stretch;
    justify-content:flex-start;
    gap:0;
    padding:84px 20px 24px;
    transform:translateX(102%);
    transition:transform .24s ease-out;
    box-shadow:-8px 0 30px rgba(22,33,31,.12);
    border-top-left-radius:18px;
    overflow-y:auto;
    z-index:70;
  }
  .nav-links.is-open{transform:translateX(0);}
  .nav-link{
    padding:16px 8px;
    border-bottom:1px solid var(--line);
    border-radius:0;
    font-size:16px;
  }
  .nav-link:hover{background:transparent;color:var(--brand);}
  .nav-link.is-active{color:var(--accent);}
  .nav-link.is-active::after{display:none;}
  .drawer-search{
    display:flex;
    align-items:center;
    gap:8px;
    height:44px;
    padding:0 12px;
    margin-bottom:12px;
    border:1px solid var(--line);
    border-radius:10px;
    background:var(--bg);
  }
  .drawer-search svg{width:16px;height:16px;color:var(--ink-3);flex:0 0 auto;}
  .drawer-search input{
    flex:1 1 auto;
    min-width:0;
    border:0;
    outline:0;
    background:transparent;
    font-size:14px;
    color:var(--ink);
  }
  .drawer-search input::placeholder{color:var(--ink-3);}
  .drawer-cta{
    display:flex;
    align-items:center;
    justify-content:center;
    margin-top:24px;
    height:48px;
    border-bottom:0;
    border-radius:10px;
    background:var(--accent);
    color:#fff;
    font-weight:600;
  }
  .drawer-cta:hover{background:#C8592F;color:#fff;}
}
@media (max-width:768px){
  :root{--sec:56px;}
  .container{padding:0 18px;}
  .nav-inner{height:60px;}
  .logo-text{font-size:16px;}
  .page-head{padding:34px 0 32px;}
  .page-head h1{font-size:28px;}
  .page-head-sub{font-size:16px;}
  h2{font-size:24px;}
  h3{font-size:19px;}
  .section-head{margin-bottom:28px;}
  .stage-strip{grid-template-columns:1fr;gap:0;}
  .stage{padding:24px 0 6px;}
  .entry-no{font-size:22px;}
  .scroll-cards{
    grid-template-columns:none;
    grid-auto-flow:column;
    grid-auto-columns:80%;
    gap:16px;
    overflow-x:auto;
    padding-bottom:14px;
    scroll-snap-type:x mandatory;
  }
  .s-card{scroll-snap-align:start;}
  .s-card-body{padding:18px;}
  .cta-band{padding:48px 0;}
  .cta-form{flex-direction:column;}
  .cta-form .btn{width:100%;}
  .btn{min-height:44px;}
  .btn-primary{width:auto;}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding:48px 0 32px;}
  .footer-bottom{flex-direction:column;gap:6px;}
}
@media (max-width:520px){
  .page-head h1{font-size:26px;}
  .entry{grid-template-columns:1fr;gap:10px;}
  .entry .text-link{grid-column:1;}
  .scroll-cards{grid-auto-columns:88%;}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;}
}

/* roulang page: category3 */
:root{
  --brand:#1F4B45;
  --brand-strong:#14332F;
  --brand-soft:#E4EEEA;
  --accent:#D9663A;
  --accent-soft:#FBEAE2;
  --accent-ink:#A8461F;
  --ink:#16211F;
  --ink-2:#4E5D59;
  --ink-3:#8A9894;
  --bg:#F7F4EE;
  --surface:#FFFFFF;
  --line:#E6E1D6;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-1:0 1px 2px rgba(22,33,31,.05),0 2px 8px rgba(22,33,31,.05);
  --shadow-2:0 6px 20px rgba(22,33,31,.09);
  --shadow-3:0 1px 0 var(--line),0 8px 24px rgba(22,33,31,.06);
  --ease:200ms ease-out;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",sans-serif;
  font-size:16.5px;
  line-height:1.9;
  color:var(--ink);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px;}
button,input{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;color:var(--ink);}
p{margin:0 0 1.1em;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(31,75,69,.18);border-radius:6px;}

.container{width:100%;max-width:1180px;margin:0 auto;padding:0 32px;}

/* ============ 按钮体系 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:background-color var(--ease),color var(--ease),transform var(--ease),box-shadow var(--ease),border-color var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:#C85831;color:#fff;text-decoration:none;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1);}
.btn-ghost{background:var(--surface);border-color:var(--brand);color:var(--brand);}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand);text-decoration:none;}
.btn-sm{height:40px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;box-shadow:none;}

.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14.5px;font-weight:600;color:var(--brand);
  background:none;border:none;padding:0;cursor:pointer;
}
.btn-text:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px;}

/* ============ 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  background:var(--brand-soft);color:var(--brand);
}
.badge-accent{background:var(--accent-soft);color:var(--accent-ink);}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,244,238,.88);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease),background-color var(--ease);
}
@supports (backdrop-filter:blur(8px)){
  .site-header{backdrop-filter:blur(8px);}
}
.site-header.is-scrolled{box-shadow:var(--shadow-3);}
.nav-inner{display:flex;align-items:center;gap:24px;height:68px;transition:height var(--ease);}
.site-header.is-scrolled .nav-inner{height:58px;}

.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink);flex:0 0 auto;}
.logo:hover{text-decoration:none;color:var(--ink);}
.logo-mark{width:30px;height:30px;color:var(--brand);flex:0 0 auto;}
.logo-text{font-size:18px;font-weight:700;letter-spacing:-.01em;white-space:nowrap;}
.logo-sub{color:var(--ink-2);font-weight:600;}

.nav-links{display:flex;align-items:center;gap:4px;}
.nav-link{
  position:relative;
  padding:8px 14px;border-radius:8px;
  font-size:15px;font-weight:500;color:var(--ink-2);
  transition:background-color var(--ease),color var(--ease);
}
.nav-link:hover{background:var(--brand-soft);color:var(--ink);text-decoration:none;}
.nav-link.is-active{color:var(--ink);}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:1px;height:2px;
  background:var(--accent);border-radius:2px;
}

.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.nav-search{
  display:flex;align-items:center;gap:8px;
  width:260px;height:40px;padding:0 12px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-btn);
  color:var(--ink-3);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.nav-search svg{width:16px;height:16px;flex:0 0 auto;}
.nav-search input{
  flex:1;min-width:0;border:0;background:transparent;font-size:14px;color:var(--ink);
}
.nav-search input::placeholder{color:var(--ink-3);}
.nav-search input:focus{outline:none;}
.nav-search kbd{
  font-family:inherit;font-size:11px;color:var(--ink-3);
  background:var(--bg);border-radius:6px;padding:2px 6px;
}
.nav-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,75,69,.14);}
.nav-quick{font-size:14px;font-weight:500;color:var(--ink-2);}
.nav-quick:hover{color:var(--brand);}

.nav-burger{
  display:none;width:40px;height:40px;border-radius:var(--radius-btn);
  background:var(--surface);border:1px solid var(--line);
  flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer;
}
.nav-burger span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform var(--ease),opacity var(--ease);}
.nav-burger.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-burger.is-open span:nth-child(2){opacity:0;}
.nav-burger.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* 移动端抽屉 */
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(340px,86vw);z-index:80;
  background:var(--surface);border-radius:18px 0 0 18px;
  padding:22px 20px 28px;display:flex;flex-direction:column;gap:8px;
  transform:translateX(102%);transition:transform 240ms ease-out;
  box-shadow:-12px 0 32px rgba(22,33,31,.16);
  overflow-y:auto;
}
.nav-drawer.is-open{transform:translateX(0);}
.drawer-search{
  display:flex;align-items:center;gap:8px;height:44px;padding:0 12px;
  background:var(--bg);border:1px solid var(--line);border-radius:var(--radius-btn);color:var(--ink-3);
  margin-bottom:8px;
}
.drawer-search svg{width:16px;height:16px;}
.drawer-search input{flex:1;min-width:0;border:0;background:transparent;font-size:14px;color:var(--ink);}
.drawer-search input:focus{outline:none;}
.drawer-link{
  display:flex;align-items:center;height:52px;padding:0 4px;
  border-bottom:1px solid var(--line);
  font-size:16px;font-weight:500;color:var(--ink-2);
}
.drawer-link.is-active{color:var(--brand);font-weight:600;}
.drawer-link:hover{color:var(--brand);text-decoration:none;}
.drawer-cta{margin-top:18px;}
.drawer-mask{
  position:fixed;inset:0;z-index:70;background:rgba(22,33,31,.34);
  opacity:0;pointer-events:none;transition:opacity 240ms ease-out;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}

/* ============ 页面头 ============ */
.page-head{
  background:var(--brand-soft);
  padding:56px 0 60px;
  border-bottom:1px solid var(--line);
}
.page-head-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:52px;align-items:center;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--ink-3);margin-bottom:18px;
}
.breadcrumb a{color:var(--ink-3);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:#BCC6C1;}
.breadcrumb .current{color:var(--ink-2);}
.page-head h1{font-size:38px;letter-spacing:-.01em;margin-bottom:16px;}
.page-head .lede{font-size:17px;color:var(--ink-2);max-width:520px;margin-bottom:24px;}
.head-meta{display:flex;flex-wrap:wrap;gap:10px;}
.head-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-img);
  border:1px solid rgba(22,33,31,.06);box-shadow:var(--shadow-2);
}

/* ============ 通用区块 ============ */
.section{padding:96px 0;}
.section-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head h2{font-size:28px;margin-bottom:14px;}
.section-head p{color:var(--ink-2);margin-bottom:0;}
.eyebrow{
  display:inline-block;font-size:12.5px;font-weight:600;letter-spacing:.06em;
  color:var(--brand);background:var(--brand-soft);
  border-radius:999px;padding:4px 12px;margin-bottom:16px;
}
.h2-bar{
  position:relative;padding-left:16px;
}
.h2-bar::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;
  border-radius:3px;background:var(--accent);
}

/* 图文交错 */
.split{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:center;}
.split.reverse{grid-template-columns:7fr 5fr;}
.split-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--radius-img);border:1px solid rgba(22,33,31,.06);box-shadow:var(--shadow-1);
}
.split-body h2{font-size:28px;margin-bottom:18px;}
.split-body p{color:var(--ink-2);}

/* 序号条目列表 */
.flow-list{border-top:1px solid var(--line);}
.flow-item{
  display:grid;grid-template-columns:74px 1fr auto;gap:26px;align-items:start;
  padding:30px 18px;border-bottom:1px solid var(--line);border-radius:12px;
  transition:background-color var(--ease),transform var(--ease);
}
.flow-item:hover{background:rgba(31,75,69,.05);transform:translateX(2px);}
.flow-num{
  font-size:22px;font-weight:700;color:var(--brand);
  background:var(--brand-soft);border-radius:10px;
  width:52px;height:44px;display:flex;align-items:center;justify-content:center;
}
.flow-body h3{font-size:20px;margin-bottom:10px;}
.flow-body p{color:var(--ink-2);margin-bottom:12px;font-size:15.5px;}
.flow-side{align-self:center;}

/* 卡片网格 */
.card-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px;box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(31,75,69,.22);}
.card h3{font-size:19px;margin:14px 0 10px;}
.card p{color:var(--ink-2);margin-bottom:0;font-size:15.5px;}
.card-icon{
  width:42px;height:42px;border-radius:12px;background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
}
.card-icon svg{width:20px;height:20px;}

/* 提示条 */
.notice{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--accent-soft);border-radius:var(--radius-card);
  padding:20px 22px;margin-top:34px;
}
.notice svg{width:20px;height:20px;color:var(--accent);flex:0 0 auto;margin-top:4px;}
.notice p{margin:0;font-size:15px;color:var(--accent-ink);}

/* FAQ */
.faq-wrap{max-width:920px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:first-child{border-top:1px solid var(--line);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:56px;padding:16px 4px;cursor:pointer;list-style:none;
  font-size:17px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand);}
.faq-icon{
  flex:0 0 auto;width:22px;height:22px;position:relative;
  transition:transform var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
}
.faq-icon::before{left:0;right:0;top:10px;height:2px;}
.faq-icon::after{top:0;bottom:0;left:10px;width:2px;transition:transform var(--ease),opacity var(--ease);}
.faq-item[open] .faq-icon::after{transform:scaleY(0);opacity:0;}
.faq-item[open] .faq-icon{transform:rotate(180deg);}
.faq-answer{padding:0 4px 22px;font-size:15.5px;line-height:1.85;color:var(--ink-2);}
.faq-answer p{margin:0;}

/* CTA 通栏 */
.cta-band{background:var(--brand-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:64px 0;}
.cta-inner{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.cta-copy h2{font-size:28px;margin-bottom:14px;}
.cta-copy p{color:var(--ink-2);margin-bottom:0;}
.cta-form{display:flex;flex-wrap:wrap;gap:12px;}
.cta-form input{
  flex:1;min-width:220px;height:44px;padding:0 14px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-btn);
  font-size:15px;color:var(--ink);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.cta-form input::placeholder{color:var(--ink-3);}
.cta-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,75,69,.14);}
.cta-privacy{font-size:12px;color:var(--ink-3);margin:12px 0 0;width:100%;}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-strong);color:rgba(255,255,255,.76);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;}
.footer-brand .logo{color:#fff;}
.footer-brand .logo:hover{color:#fff;}
.footer-brand .logo-mark{color:#fff;}
.footer-brand .logo-text{color:#fff;}
.footer-brand .logo-sub{color:rgba(255,255,255,.62);}
.footer-brand p{margin:18px 0 0;font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:320px;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-col ul li a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  border-top:1px solid rgba(255,255,255,.14);
  padding:20px 0 26px;font-size:13px;color:rgba(255,255,255,.58);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .nav-search{width:210px;}
}
@media (max-width:1024px){
  .container{padding:0 24px;}
  .nav-links,.nav-search,.nav-quick{display:none;}
  .nav-burger{display:flex;}
  .section{padding:72px 0;}
  .page-head-inner{grid-template-columns:1fr;gap:34px;}
  .page-head-inner .head-media{order:-1;}
  .head-media img{aspect-ratio:16/9;}
  .split,.split.reverse{grid-template-columns:1fr;gap:32px;}
  .split.reverse .split-media{order:-1;}
  .flow-item{grid-template-columns:60px 1fr;gap:18px;}
  .flow-side{grid-column:2;justify-self:start;}
  .cta-inner{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  body{font-size:16px;line-height:1.9;}
  .container{padding:0 18px;}
  .section{padding:56px 0;}
  .page-head{padding:38px 0 44px;}
  .page-head h1{font-size:29px;}
  .page-head .lede{font-size:15.5px;}
  .section-head h2,.split-body h2,.cta-copy h2{font-size:23px;}
  .card-grid{grid-template-columns:1fr;}
  .card{padding:20px;}
  .flow-item{padding:22px 12px;}
  .btn{min-height:44px;}
  .cta-form{flex-direction:column;align-items:stretch;}
  .cta-form input,.cta-form .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:520px){
  .page-head h1{font-size:26px;}
  .logo-text{font-size:16px;}
  .logo-mark{width:26px;height:26px;}
  .badge{font-size:11.5px;padding:0 10px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;}
}